Tonca is the adored Alligator snapping turtle and has been MOSH's unofficial mascot since 1994.
Tonca is turning 53 on Saturday, July 13 and everyone is invited to his party!
Alex Livingston got all the details of how everyone can join in on the celebration.
Along with the festivities, visitors will also get a rare opportunity to see Tonca up-close for his annual weigh-in and check-up.
This is the only day of the year that Tonca is removed from MOSH’s Hixon Native Plant Courtyard.